Squirrely-feeling steering is usually caused by the rider tensing up and over-correcting. I think both bikes you tested have 20" wheels - the RANS at least does. The Strat also comes with a 26" front wheel. Whether you like it more or not, only a test ride will tell. No matter what you ride, remember: RELAX YOUR UPPER BODY!

I suggest that you continue with your test rides, and after you've done a few more, then wait a week & go through the list again. By then your brain will have processed the experiences and the second tries may be a lot more enjoyable.